Pouring flecks of rust into water usually makes it dirtier. But researchers have developed special iron oxide nanoparticles called 'smart rust' that actually makes it cleaner. The magnetic ...

Generally, rust is thought of as making water dirtier and unhealthy. Now, a new study has found a way to use rust and magnets to clean water. For this, researchers used nanoparticles that they call ...

Selenium is a critical element, particularly for the thyroid and immune system, but too little or too much can be harmful to both humans and wildlife. A team of researchers at Washington University in ...